composition of matter. what is matter? anything that has mass and takes up space two categories: ...
TRANSCRIPT
![Page 1: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/1.jpg)
Composition of Matter
![Page 2: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/2.jpg)
What is Matter?
Anything that has mass and takes up space
Two categories:SubstancesMixtures
![Page 3: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/3.jpg)
What is Matter?
Anything that has mass and takes up space
Two categories:SubstancesMixtures
![Page 4: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/4.jpg)
Substances
Two Categories:ElementCompound
![Page 5: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/5.jpg)
Elements
Elements are pure substances composed of only one type of atom
There are 118 known elements92 of them occurnaturally
It is only an element if it is found on the Periodic Table
![Page 6: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/6.jpg)
Elements: How to Write Them
Element symbols are written with the 1st letter capitol, and the 2nd lower case
Ex:Hydrogen = HCarbon = COxygen = OCalcium = CaNeon = Ne
![Page 7: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/7.jpg)
Atoms
An atom is the smallest unit of an element that is still that elementAll atoms of one element are alike
For instance, Au is pure gold. Every atom in Au will be the same.
![Page 8: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/8.jpg)
Compounds
Two or more elements bonded together in a fixed proportionThey are the same every time
CO2, H2O, NaCl C6H12O6, C8H10N4O2, C2H5OH
If you see 2 different elements written together with no spaces, it is a compound
Physical processes CANNOT separate compounds
![Page 9: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/9.jpg)
Compounds
If you see 2 different elements written together with no spaces, it is a compound
Which of the two pictures is written correctly?
![Page 10: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/10.jpg)
CompoundsCompounds have different
appearance (and properties) than the elements that make them up
NaCl (table salt) is made of Na (sodium) and Cl (chlorine)
Table Salt has a different appearance than the elements that make them up
Compounds are always molecules, but molecules are not always compounds
![Page 11: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/11.jpg)
Molecule
Two or more of the same atoms bonded in a fixed proportionThese atoms do not need to be
DIFFERENT atomsH-H is a molecule. So is O=OCO2 and H2O are also
moleculesMolecules are the smallest form of a compound that can exist and still have the same properties of the compound
![Page 12: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/12.jpg)
What is Matter?
Anything that has mass and takes up space
Two categories:SubstancesMixtures
![Page 13: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/13.jpg)
Mixtures
Contain more than one type of matter that IS NOT chemically bonded together
Can be separated physically2 Types:
HomogeneousHeterogeneous
![Page 14: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/14.jpg)
Heterogeneous Mixtures
Matter is not made up of same proportions
Different parts have easily distinguishable materials Ex: cereal, trail mix,
cookie dough ice cream, kit-kat bar
CAN be physically separated
![Page 15: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/15.jpg)
Homogeneous Mixtures
Matter is same throughout; perfectly evenly blended Ex: soda, air, chocolate ice
cream, salt water, kool-aidAlso called a solution
CAN be physically separated
![Page 16: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/16.jpg)
Homogeneous vs Heterogenous
Examples:
![Page 17: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/17.jpg)
Matter
Mixtures Substances
Homogeneous Heterogeneous Elements Compounds
![Page 18: Composition of Matter. What is Matter? Anything that has mass and takes up space Two categories: Substances Mixtures](https://reader035.vdocument.in/reader035/viewer/2022062407/56649e665503460f94b60840/html5/thumbnails/18.jpg)
Page 279 in textbook